Webpack 从无服务器上的Web包中排除节点模块

我正在读这篇媒体文章，其中一个项目是用这些依赖项建立的

$ npm install serverless serverless-offline serverless-webpack webpack webpack-node-externals babel-loader @babel/core @babel/preset-env @babel/plugin-proposal-object-rest-spread --save-dev

这个

serverless.yml

文件

service: my-first-lambda

# enable required plugins, in order to make what we want
plugins:
  - serverless-webpack
  - serverless-offline

# serverless supports different cloud environments to run at.
# we will be deploying and running this project at AWS cloud with Node v8.10 environment
provider:
  name: aws
  runtime: nodejs8.10
  region: eu-central-1
  stage: dev

# here we describe our lambda function
functions:
  hello: # function name
    handler: src/handler.main # where the actual code is located
    # to call our function from outside, we need to expose it to the outer world
    # in order to do so, we create a REST endpoint
    events:
      - http:
          path: hello # path for the endpoint
          method: any # HTTP method for the endpoint

custom:
  webpack:
    webpackConfig: 'webpack.config.js' # name of webpack configuration file
    includeModules: true # add excluded modules to the bundle
    packager: 'npm' # package manager we use

这个

webpack.config.js

：

const path = require('path');
const nodeExternals = require('webpack-node-externals');
const slsw = require('serverless-webpack');

module.exports = {
  entry: slsw.lib.entries,
  target: 'node',
  mode: slsw.lib.webpack.isLocal ? 'development' : 'production',
  externals: [nodeExternals()],
  output: {
    libraryTarget: 'commonjs',
    // pay attention to this
    path: path.join(__dirname, '.webpack'),
    filename: '[name].js',
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: [
          {
            loader: 'babel-loader',
            options: {
              // ... and this
              presets: [['@babel/env', { targets: { node: '8.10' } }]],
              plugins: [
                '@babel/plugin-proposal-object-rest-spread',
              ]
            },
          },
        ],
      },
    ],
  },
};

---

这似乎遵循了在中记录的模式。但我不太明白的是，为什么这不等于将

includeModules

保留为默认值

false

？从这一点来看，两者都将排除

节点\u模块

依赖项。

includeModules:false

意味着所有依赖项都将成为捆绑包的一部分，从而生成一个JavaScript文件（没有外部依赖项）

externals:[nodeExternals（）]

告诉Webpack不要绑定外部依赖项，因此生成的JavaScript文件将只包含您的代码

由于您的代码可能需要这些外部依赖项，

includeModules:true

告诉无服务器网页包插件在

节点模块

目录下生成的zip包中包含这些依赖项

您可以尝试在

.serverless

下查看生成的zip文件，以查看模式之间的差异

注释

includeModules:true#将排除的模块添加到
yaml
文件中的bundle

，这有误导性

应该是

includeModules:true#将排除的模块添加到生成的zip包中

---

主要是要区分捆绑（由Webpack完成）和打包（由插件完成）。

感谢您的精彩解释！简单明了。你应该写博客，如果你还没有！